수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 근과계수[대수]

우럭 2020.08.14 05:28 조회 517

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

x/2+y/3+z/5+w/8 = 1을 만족하는 실수 x, y, z, w가 존재한다.

이 네 변수를 근으로 하는 방정식

5x⁴+ ax³+ bx²+ cx + 4 = 0이 존재할 때,

a+b+c를 구하여라.

[풀이 필수]

이전글 [대수]거듭제곱의 계산

다음글 열량 섭취[조합]

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